* {
    margin: 0;
    padding: 0;
}

.modify {
    width: 700px;
    height: 500px;
    margin: 5px auto;
    padding: 50px;
    box-sizing: border-box;
}

.modify h1 {
    margin-bottom: 20px;
}

.modify div {
    margin: 15px 0;
    width: 600px;
    height: 40px;
    display: flex;
    align-items: center;
    border-radius: 5px;
    border: 1px solid gainsboro;
}

.modify div span {
    width: 80px;
    height: 40px;
    background: gainsboro;
    line-height: 40px;
    text-align: center;
    border-top-left-radius: 5px;
    border-bottom-left-radius: 5px;

}

.modify div input {
    height: 40px;
    width: 500px;
    outline: none;
    border: 0;
    border-left: 1px solid gray;
    padding-left: 10px;
}

.modify .buttons {
    margin-top: 30px;
}

.modify .buttons .button1 {
    width: 150px;
    height: 35px;
    background: dodgerblue;
    color: white;
    font-size: 20px;
    outline: none;
    border: 0;
    margin-right: 10px;
    border: 1px solid gray;
    border-radius: 5px;
}

.modify .buttons .reset {
    width: 150px;
    height: 35px;
    font-size: 20px;
    outline: none;
    border: 0;
    margin-right: 10px;
    border: 1px solid gray;
    border-radius: 5px;
}

table {
    width: 700px;
    height: 500px;
    margin: 10px auto;
    border: 2px solid green;
    padding: 50px;
    box-sizing: border-box;
    border-collapse: collapse;
}
td {
    width: 100px;
    height: 50px;
    border: 1px solid black;
    text-align: center;
    background: #f5f5f5;
    font-weight: 800;
}
tbody{
    height: 1px;
}
